Any of various thermoplastic resins that are polymers of propylene. They are hard and tough, and are used to make molded articles and fibers.(noun)
A fabric of fibers made from any of these resins.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "polypropylene" in a sentence
"First, a pair of those thin polypropylene glove liners."
"By golly Ol’eyeball just about said it, polypropylene is one of the best materials I know of."
"Julie learned that the outside of her childrens' disposable diapers was made using a plastic resin called polypropylene, which was also used sometimes in textiles in footwear."